Loom-comber-board motion.



W. WATTIE.

PATENTED SEPT. 12, 1905.

Loom OOMBER BOARD MOTION.

APPLICATION FILED IAN. 23. 1905.

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UNITED STATES PATENT OFFICE.

WILLIAM WA'ITIE, OF \VOROESTER, HASSAOHUSIC'I S, ASSIGNOR TO OROMPTON & KNOWLES LOOM W ORKS, A CORPORATION OF MASSA- CHUSETTS.

Specification of Letters Patent.

Patented Sept. 12,1905.

Application filed January 23, 1905. Serial No. 242,284

T (71/ 'IL'ILUHL it may concern:

Be it known that I, \VILLIAW WATTIE, a citizen of the United States, residing at \Vorcester, in the county of WVorcester and State of Massachusetts, have invented certain new and useful Improvements in Loomlomber-Board )Iotions, of which the following is a specification.

My invention relates to a comberboard motion for pile-fabric or carpet looms, and particularly to that class of looms shown and described in United States Letters Patent No. 747,587, dated December 22, 1903, in which patented looms a jacquard mechanism is used for the pile-warps and the formation of the pile-loo s is effected upon longitudinal pile-wires w rich extend in the direction of the length of the warp-threads and some of the pile-warps are raised and carried over the pile-wires and then lowered to form the pile-loops and all the pile-warps are raised at regular intervals above the upper ends of the blades which support the ile-wires. The weight of the pile-warp fieddle-cords and weights thereon (there ordinarily being eight ile-warp heddle-cords and weights to an incii) is very great, and it has been found that it is not practical to raise all of said heddle-cords and weights to their highest position at regular intervals, as set out in said Patent No. 747,587.

The object of my invention is to improve upon the construction of the comber-board or pile-warp-raising mechanism shown and dc scribed in said patent and to provide a cornbined vertical moving and rocking comberboard or pile-warp-raising mechanism, as will be hereinafter fully described.

I have only shown in the drawing a detached portion of a loom-frame and parts of a loom of the class referred to with my improvements ap lied thereto sufficient to enable those skil ed in the art to understand the construction and operation thereof.

Referring to the drawing, the figure shows a sectional elevation of a loom-frame and arts of a loom and my improvements applied thereto.

In the accompanying drawing, 1 is the loom side or frame; 2, the lay-sword, pivotally mounted at its lower end and carrying the lay 3, which is connected with the crankshaft 4 through crank-connector 5. The

which the pile-loops are formed. EXtend-' mg 11 between the supporting-blades 8 of the pi e-wires 10 are a series of upright guidestrips 11, which separate and guide the pilewarps 12 as they are raised and lowered and moved transversely across the pile-wires 10 by the transverse reciprocating bar 13, carrying downwardly-extending teeth 13, be-

tween which the pile-warps 12 extend.

There are three harnesses 14, 15, and 16 carrying the stuffer-warp 1 1 and the binderwarps 15 and 16 in the ordinary way. Between the harnesses and the pilcwarpsupporting blades 8 are the hcddle-cords 17 for the pile-warps 12. On the lower ends of the heddle-cords 17 are weights 18. The movement of the heddle-cords 17 is controlled by the ordinary acquard mechanism (not shown) supported on the frame If) and operatcd by a lever 20 through connection 21 to cam mechanism in the ordinary way.

All of the above-meritioncd parts may be of the usual and well-known construction in the class of looms referred to, and particularly in the loom shown and described in said Patent No. 747,587.

I will now describe my improvements combined with the parts above mentioned.

On the bottom shaft 22 is fast in this instance a gear 23, which meshes with and drives a gear 21, fast on a shaft 25. Also fast on the shaft 25 is a cam 26,having a camgroove 26 in one face thereof. Into said cam-groove 26 extends a roll 27 (shown by broken lines,) mounted on a stud 27 on a le ver 27, fulcrumcd on a transverse rod 28. The outer end of the lever 27 has an elongated slot 27 therein to adjust-ably receive a stud 29, to which is attached a knuckle connection 30 to the lower end of a rod or connector 31. A weight 32 is in this instance attached to the lever 27, and weights 33 are in this instance mounted on the connector 31, said weights being used to balance the weight of the heddle-cords 17 and weights 18 thereway 39, secured to the loom-frame.

on, as is customary. The upper end of the connector 31 is pivotally attached to the outer end of a lever 34, which is centrally pivoted on a transverse rod 35. On the opposite end of the lever 34 are two studs 34 at different distances from the fulcrum-point of said lever. through two crossed connectors 36, to studs 38 on the end frame 38 of the comber' board 33. The frame 38 has on its central outer surface a roll 38 (shown by broken lines) for moving in a vertical guide plate or The comber-board 38 has a series of holes therein in the usual way, through which the heddlecords 17 extend. Said cords are provided with knots 17 therein, which extend above the openings in the comber-board 38 and are adapted to be engaged by the comber-board when the same is raised, as shown by full lines in the drawing, in the usual way.

It will be understood that the parts of the comberboard motion above described and shown in the drawing are duplicated on the opposite end of the loom, (not shown,) and in case of wide looms the parts of the comberboard motion may be duplicated in termediatethe ends of the loom.

In the operation of the loom, through cam 26, cam-lever 27, connector 31, lever 34, and connectors 36 to the comber-board 38, said co'mber-board is raised and lowered, as indicated by full and broken lines in the draw ing, at regular intervals. The height to which the comber-board 38 is raised is predetermined by the shape of the cam 26. The comber-board 38 is only raised to a point (indicated by full lines in the drawing) which is sufficient to bring all the pile-warps 12 in the heddle-cords 17, the knots 17 of which cords are in engagement with the comber-board, to the middle of the shed, as shown in the drawing. The pile-warps 12 for forming the pile-loops over the pile-wires 10, which are to be moved up between the teeth 13 of the transversely-moving bar 13, (generally about one-fifth of all the pilewarps), are moved up higher by the jacquard mechanism to the position shown by the heddle-cords 17 at the left in the drawing. After the heddle-cords 17 have been raised by the comber-board, as above described, the comber-board 38 goes down to the position shown by broken lines in the drawing, allowing the heddle-cords 17 to drop and carry down the pile-warps 12 into the lower shed. The lifting mechanism connected with the pile-warps 12 in the upper shed is also operated to allow the heddle-cords connected therewith to be lowered to carry the pile-warps into the middle of the shed in the ordinary way. Through the crossed connections 36, intermediate the lever 34 and the comber-board 38, the comber-board will be rocked and moved from one angle (shown The studs 34 are connected,

by full lines in the drawing) to thefother angle (shown by broken lines in the drawing) as it is raised and lowered. The degree of rocking and the inclination of the comberboard correspond to the inclination of the sheds in the weaving operation.

In the formation of the sheds forthe passage of the shuttle the pile-warp heddlecords at the rear have to be raised higher than the pile-warp heddle-cords at the front to obtain the desired inclination of the shed when the pile-warps are in the upper plane of the shed, and vice versa when the pilewarps are in the lower plane of the shed. By means of my combined lifting and rocking comber-board, constructed as shown in the drawing and described herein, the lifting and rocking being simultaneous, I am enabled to raise the pile-warp heddles at the rear higher than the pile-warp heddles at the front when the pile-warps are raised into the upper plane of the shed and also to raise the pile-warp heddles at the front higher than the pilewarp heddles at the rear when the pile-warps are lowered into the lower plane of the shed, as will be well understood by those skilled in the art.

The advantages of my improvements will be readily appreciated by those skilled in the art.

It will be seen that only the pilewarps which are to be moved transversely to form the pile-loops, said pile-warps forming about one-fifth part of all of the pile-warps, are raised to their highest position, according to the indications of the jacquard mechanism, while all the rest of the pilewarps are raised by the comber-board at regular intervals only to the center or middle portion of the shed, as shown in the drawing, and also by the rocking comberboard the pile-warp heddle-cords are raised and lowered on an in clined plane corresponding to the inclination of the plane of the sheds.

In my improvements much less power is required to operate the comber-board and less weights are required to counterbalance the weight of the heddle-cords and weights thereon.

It will be understood that the details of construction of my improvements may be varied from what is shown and described, if desired, and the same may be adapted to be a plied to looms of different construction t an the class of looms referred to.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. In a loom of the class described,a jacquard mechanism for controlling the loopforming pile-warps, in combination with a comber-board disposed between the j ac quard mechanism and line ofwarp-threads for moving the non-loop-forming pile-warps into the middle of the shed, and means for raising, lowering and simultaneously tilting the cornber-board in two directions from the horizontal to maintain the non-loop-forming pile-warps in a common plane.

2. In a loom of the class described, a series of heddle-frames for controlling the stufler 3. In a loom of the class described, the

combination with a comber-board for controlling the non loop form1ng pile warp threads in a shed tormation, of means for raising and lowering said comber-board and simultaneously tilting the same in two directions from the horizontal, and means tor guiding the comber-board in its rising-and-talling movement and ermitting the comberboard to tilt as described.

4. In a loom of the class described, the combination with a comber-lmard of means for raising, lowering, and rocking said comber-board in two directions from the horizontal, said means comprising a driven cam, a cam-lever, a second lever, connections between said levers, and cross-connectors between the second lever and comberboard.

5. In a loom of the class described, the combination with a comberl )oard of a lever, cross connectors between the lever and comberboard, means for raising and lowering the end of the lever, a guide or way secured to the loom-frame, and a roll projecting from the comber-board into said guide or way so that as the comber-board is raised and lowered, it may be )ermitted to rock in two directions from the horizontal.

WI LLIAM IVATTI E.

itnesses J. C. DEwEY, M. Haas. 

